dist_lock_strategy.hpp

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#pragma once
 
/// @file userver/storages/mongo/dist_lock_strategy.hpp
/// @brief @copybrief storages::mongo::DistLockStrategy
 
#include <chrono>
#include <string>
 
#include <userver/dist_lock/dist_lock_strategy.hpp>
#include <userver/storages/mongo/collection.hpp>
 
USERVER_NAMESPACE_BEGIN
 
namespace storages::mongo {
 
/// @brief Strategy for MongoDB-based distributed locking
class DistLockStrategy final : public dist_lock::DistLockStrategyBase {
public:
    /// Targets a distributed lock in a specified collection as a host.
    DistLockStrategy(Collection collection, std::string lock_name);
 
    DistLockStrategy(Collection collection, std::string lock_name, std::string owner);
 
    void Acquire(std::chrono::milliseconds lock_ttl, const std::string& locker_id) override;
 
    void Prolong(std::chrono::milliseconds lock_ttl, const std::string& locker_id) override;
 
    void Release(const std::string& locker_id) override;
 
private:
    storages::mongo::Collection collection_;
    std::string lock_name_;
    std::string owner_prefix_;
};
 
}  // namespace storages::mongo
 
USERVER_NAMESPACE_END